eprintid: 1080 rev_number: 17 eprint_status: archive userid: 6 dir: disk0/00/00/10/80 datestamp: 2012-01-26 09:16:41 lastmod: 2016-04-07 08:03:08 status_changed: 2012-01-26 09:16:41 type: article metadata_visibility: show creators_name: Zlatic, Vinko creators_name: Gabrielli, Andrea creators_name: Caldarelli, Guido creators_id: creators_id: creators_id: guido.caldarelli@imtlucca.it title: Topologically biased random walk and community finding in networks ispublished: pub subjects: QA subjects: QC divisions: EIC full_text_status: public keywords: PACS: 89.75.Hc, 05.40.Fb, 02.50.Ga, 02.50.Tt note: © 2010 American Physical Society abstract: We present an approach of topology biased random walks for undirected networks. We focus on a one-parameter family of biases, and by using a formal analogy with perturbation theory in quantum mechanics we investigate the features of biased random walks. This analogy is extended through the use of parametric equations of motion to study the features of random walks vs parameter values. Furthermore, we show an analysis of the spectral gap maximum associated with the value of the second eigenvalue of the transition matrix related to the relaxation rate to the stationary state. Applications of these studies allow ad hoc algorithms for the exploration of complex networks and their communities. date: 2010-12 date_type: published publication: Physical Review E volume: 82 number: 6 publisher: American Physical Society pagerange: 066109-1 id_number: 10.1103/PhysRevE.82.066109 refereed: TRUE issn: 1539-3755 official_url: http://link.aps.org/doi/10.1103/PhysRevE.82.066109 related_url_url: http://arxiv.org/abs/1003.1883 projects: EC FET Open Project “FOC” No. 255987. citation: Zlatic, Vinko and Gabrielli, Andrea and Caldarelli, Guido Topologically biased random walk and community finding in networks. Physical Review E, 82 (6). 066109-1. ISSN 1539-3755 (2010) document_url: http://eprints.imtlucca.it/1080/1/PhysRevE.Caldarelli_2010.pdf